John Deere 4255 4455 Front Axle Service Manual

Page 1


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4055, 4255, and 4455 Tractors Repair

For complete service information also see:

4055, 4255, and 4455 Tractors

Operation and Tests

6076 Engine

Radial Piston Pumps

Engine Accessories

MFWD Axles, 1100 Series

TM1459

CTM6

CTM7

CTM11

CTM17

John Deere Waterloo Works TM1458 (09JUL01)

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FOREWORD

This manual is written for an experienced technician. Essential tools required in performing certain service work are identified in this manual and are recommended for use.

Live with safety: Read the safety messages in the introduction of this manual and the cautions presented throughout the text of the manual.

NThis is the safety-alert symbol. When you see this symbol on the machine or in this manual, be alert to the potential for personal injury.

Technical manuals are divided in two parts: repair and diagnostics. Repair sections tell how to repair the components. Diagnostic sections help you identify the majority of routine failures quickly.

Information is organized in groups for the various components requiring service instruction. At the beginning of each group are summary listings of all applicable essential tools, service equipment and tools, other materials needed to do the job, service parts kits, specifications, wear tolerances, and torque values.

Binders, binder labels, and tab sets can be ordered by John Deere dealers direct from the John Deere Distribution Service Center.

This manual is part of a total product support program.

FOS MANUALS REFERENCE

TECHNICAL MANUALS MACHINE SERVICE

COMPONENT MANUALS COMPONENT SERVICE

Fundamentals of Service (FOS) Manuals cover basic theory of operation, fundamentals of troubleshooting, general maintenance, and basic type of failures and their causes. FOS Manuals are for training new personnel and for reference by experienced technicians.

Technical Manuals are concise guides for specific machines. Technical manuals are on-the-job guides containing only the vital information needed for diagnosis, analysis, testing, and repair.

Component Technical Manuals are concise service guides for specific components. Component technical manuals are written as stand-alone manuals covering multiple machine applications.

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NOTICE TO THE DEALER

IMPORTANT: The changes listed below make your current TM obsolete. Discard TM-1458 dated MAY-89. Please remove this page and route through your service department.

• SECTION 20

Added Fan And Viscous Clutch

• SECTION 50

Complete Revision To This Section

• SECTION 55

Complete Revision To This Section

• SECTION 70

Added Remote Cylinder

Major revisions to this TM are listed above. Some Sections and Groups will have specification, procedure, or formatting changes not listed on this notification.

• SECTION 80

Revision To Specifications

• SECTION 90

Added SOUND-GARD Door Adjustment

• SECTION 99

Revised Dealer Fabricated Tools

RX,TM1458,DLR -19-10OCT90

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SECTION 10 GENERAL INFORMATION

Group 05 Safety

Group 10 Machine Specifications

Group 15 Perma-Clutch

Group 20 Quad-Range Planetary

Group 25 Quad-Range Transmission and Group 15 Predelivery Service Charge Pump

Group 20 Tune-Up

Group 25 Lubrication

SECTION 15 SEPARATION

Group 05 Front Axle

Group 30 Shift Lever Assembly

Group 35 PTO Gear Train

Group 40 Adjust PTO Clutch Rod

SECTION 55 POWER TRAIN POWER SHIFT

Group 10 Front End TRANSMISSION

Group 15 Front End and Engine

Group 05 Remove/Install Traction Clutch Valve

Group 20 Engine Housing

Group 25 SOUND-GARD Body

Group 30 Power Shift Clutch Housing

Group 10 Traction Clutch Valve Housing

Group 15 Remove/Install Transmission Control

Group 35 QUAD-RANGE Clutch Housing Valve Housing

Group 20 Transmission Control Valves and

Group 40 Transmission Accumulators

Group 45 Final Drive

Group 50 Hi-Crop Final Drive

SECTION 20 ENGINE

Group 05 Service

Group 10 Cooling System

Group 15 Dynamometer Test and Engine

Group 25 Remove/Install Traction Clutch

Group 30 Traction Clutch and Drive Shaft

Group 35 Input Planetary

Group 40 Reduction Gear Train

Group 45 Output Planetary

Group 50 Speed Selector Assembly

Group 55 Charge Pump Assembly Break-In

SECTION 30 FUEL AND AIR

Group 05 Air Intake System

Group 10 Diesel Fuel System

SECTION 40 ELECTRICAL REPAIR

Group 05 Connector Repair

Group 10 Harness Replacement

Group 15 Alternator

Group 20 Starting Circuit Replacement

Group 25 Lighting Circuit Repair

Group 30 INTELLITRAK Monitoring System

Group 60 PTO Gear Train With MFWD

Group 65 PTO Gear Train Without MFWD

Group 70 Adjust PTO Clutch Rod

Group 75 MFWD Gear Train

Group 80 MFWD Clutch

SECTION 56 DIFFERENTIAL AND FINAL DRIVE

Group 05 Differential

Group 10 Differential Lock Valve

Group 15 Final Drive

Group 20 Hi-Crop Final Drive

SECTION 60 STEERING AND BRAKES

Group 05 Remove/Install Power Steering

Group 35 Accessory Components Components

Group 40 Auxiliary Lighting & Electrical

Group 10 Steering Column Components (European Version)

SECTION 50 POWER TRAIN QUAD-RANGE

Group 15 Metering Pump

Group 20 Steering Valve

Group 25 Steering Motor TRANSMISSION

Group 05 Clutch Control Valve

Group 10 Clutch Operating Piston Housing

15

Group 30 Remove/Install Brake Valve & Brake

Accumulator

Group 35 Brake Valve

Group 40 Brake Accumulator

Group 45 Bleed Brakes & Test Brake Accumulator

Group 50 Brake Pistons, Plates and Disks

Group 55 Auxiliary Tractor Brake (European Version)

Group 60 Secondary Brake (European Version)

Group 65 Auxiliary Steering System (European Version) 20

SECTION 70 HYDRAULICS

Group 05 Hydraulic System Repair

Group 10 Main Hydraulic Pump

Group 15 Oil Filter Relief Valve and Return Oil Manifold

30

Group 20 Hydraulic Oil Cooler and Bypass Valve

Group 25 Rockshaft and Lift Assist Cylinders

Group 30 Draft Sensing Components

Group 35 Hitch Control Valve

40

Group 40 Control Valves

Group 45 Selective Control Valves and Breakaway Couplers

Group 50 Transmission-Hydraulic Cleanup

Group 55 Remote Cylinder

50 SECTION 80 MISCELLANEOUS

Group 05 Rear Wheels

Group 10 Front Axle

SECTION 90 OPERATOR STATION REPAIR

55

Group 05 Air Conditioning System

Group 10 Air Conditioning System Service

Group 15 Heating System

Group 20 Seat

Group 25 ROPS and SOUND-GARD Body 56 SECTION 99 DEALER FABRICATED TOOLS

Group 05 Fabricated Tools

Group 05 Safety

Group 10 Machine Specifications General Specifications

Group 15 Predelivery Service Dealer Predelivery Service

Group 20 Tune-Up

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